Elevator-bucket



(No Model.)

L. D. HOWARD.

ELEVATOR BUCKET.

No. 413,059. Patentd Oct. 15, 1889.

ml iAEi- Q vi cmeooeo 1 T UNITED STATES PATENT OFFICE.

LYMAN D. HOWARD, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE OLARK-HOWVARD EXOAVATOR AND CONVEYOR COMPANY, OF NEW JERSEY.

Q ELEVATOR-BUCKET.

SPECIFICATION forming part of Letters Patent No. 413,059, dated October 15, 1889.

Application filed March 15, 1889. Serial No. 303,386. (No model.) I

To aZZ whom, it may concern: Be it known that I, LYMAN D. HOWARD, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and usefullmprovement in Elevator-Buckets, which improvement is fully set forth in the following specification and accompanying drawings.

My invention relates to improvements in IO elevator-buckets; and it consists in a bucket connected with the bucket-chain by links pivotally secured to said bucket at or near the top and bottom thereof, the upper of said pivotal connect-ions being within the line of the I 5 strain and the other being withoutthesaid line. It further consists of the combination of parts as herein set forth and claimed.

Figure 1 represents side elevations of a bucket embodying my invention. Fig. 2 represents a perspective view of a portion of the bucket shown in Fig. 1. Fig. 3 represents a vertical section thereof. Fig. 4 represents a view of a portion of Fig. 3 on an enlarged scale. Fig. 5 represents a perspective view 2 5 of the catch of the door of the bucket.

Similar letters and numerals of reference in dicate corresponding parts in the several figures.

Referring to the drawings, A designates an elevator-bucket,B the chains with which the bucket is connected, and C the sprocket- Wheels around which the chains pass.

The buckets are connected at top and bottom near their centers with the chains 15, and between the chains by means of links 1, plates 2, pivots 3, and links 4, the latter being on the sides of and independent of the links of the chains, thus avoiding direct pivoting of the bucket to the chains and admitting of the dis- 4 connection of the same from the chains by cutting or removing the pivots, therebyseparating the parts without injury to the chains. The buckets are provided with gates or doors 5, which are pivoted to the same at the upper end and held in closed. position by means of catches 6 at thelower end thereof, said catches having their noses projecting in such manner as to be engaged at the proper time by apulley 7 on the shaft of the Wheel 0, so as to trip said catch and permit the doors to drop open. After the bucket leaves said wheel 0 it reaches another sprocket-wheel, (not shown in the present case,) whereby the door is closed,which feature, broadly considered, is well known in the art. 5 5

Within the bucket is a piece or flap 8 of packing material, normally adapted to project from the bucket when the door of the sameis open,which is secured to the bottom and ends of the bucket, so as to be forced against the inner side of the door 5 when the latter is closed, thus forming a tight joint between the door and walls of the bucket and preventing leakage thereat, especially when liquid is being handled. 5

As the bucket is connected at or near its center with the chains, theoutward projection of the bucket is reduced, so that the capacity of the bucket may be increased. The bucket is attached attop outside of the center line of strain and at bottom inside of said line, as will be seen by the dotted line, Fig. 1. By this provision the bottom links 1 are of increased length, thus making less variation in the position of the bucket relatively to the center line of strain on the curve or right line and bringing the door nearer to the wheel which closes the same.

The proportion and position of the bottom or heel links 1 are of vital importance in determining the position of the bucket where subject to the strain of the thrust when digging or carrying the load or determining its position on the wheels when opening or closing the bucket.

The catch 6 has two noses 9,thus providing a widened bearing for said catch on the edge of the door. The rear end of the catch is bent, as at 10, and hooked into the bottom of the bucket as an axis or pivot. A spring 11 is secured to the band or guard 12 on the under side of the bucket and bears against the catch for holding the same in closed or normal po sition. The noses of the catch. are wider than the guard '12, so that rearward motion of the catch through said guard is prevented.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. An elevator-bucket connected with the chains thereof at top and bottom, respectv I ively, inside and outside of the center lines of strain, substantially as described.

2. An elevator-bucket, in combination with a bucket-chain, links pivotally connected t said bucket and chain at the top and bottom thereof, the lower link being longer than the upper link and the points of connection of the said links with the bucket being on diiferent sides of the line of strain, said parts being combined substantially as and for the purpose set forth.

3. The elevator-bucket A, with pivoted door 5, a catch pivotally connected with the bottom of the bucket and having noses adapted to enease th lower end of the door, a uard secured to the under side of the bucket, and a spring bearing against said catch, said parts being combined substantially as described.

4. The elevator-bucket A,with pivoted door 5, a catch pi votally connected with the bottom of the bucket and having noses adapted to engage the edge of the door,a guard secured to the under side of the bucket and embracing the catch, and a spring Within the guard bearing against the catch, the noses of said catch being wider than said guard, said parts being combined substantially as and for the purpose set forth.

LYMAN D. HOWARD.

In presence of- HENRY G. WILEY, F. W. SHE DO 

